More than 100 business leaders — including tech heavyweights like Amazon’s Jeff Bezos, Facebook’s Mark Zuckerberg, Google’s Sundar Pichai, Apple’s Tim Cook and Twitter’s Jack Dorsey — signed a letter demanding Congress work on a legislative solution to protect people who have grown up in the US after coming here illegally with their parents. The letter, which was organized by The Coalition for the American Dream, was published Monday in full-page ads in The New York Times and The Wall Street Journal.

“Studies by economists across the ideological spectrum have determined that if Congress fails to act, our economy could lose $350 billion in GDP, and the federal government could lose $90 billion in tax revenue,” said the letter. “Now is the time for Congress to pass a law to provide Dreamers the certainty they need.”

The letter comes as President Donald Trump on Jan. 25 agreed to reopen the government after a 35-day shutdown without the $5.7 billion in funding he’d demanded for a border wall, according to CBS News. However, another partial shutdown looms as negotiations over the budget and border security have reportedly stalled.

DACA, the Deferred Action for Childhood Arrivals program, was established in 2012 by then-President Barack Obama. It grants children who immigrated illegally to the US temporary protection from deportation and gives them permits to work legally here. In 2017, the Trump administration ordered an end to DACA.

In 2018, tech giants including Google, Apple, Facebook and Amazon signed a joint letter to Trump and congressional leaders urging them to protect Dreamers.

The Coalition for the American Dream, Amazon, Facebook, Apple and Twitter didn’t immediately respond to requests for additional comment. Google referred to the letter.